Answer:
27.5
Step-by-step explanation:
To find the mean you basically just add all of the numbers then divide by how many there are.
So, for this problem, 19+22+24+45=110
110/4=27.5
Hope this helped!!
THE WHOLE THING???? or just one answer?

Explanation:
As we know that set is the collection of elements and set builder is the method of defining the set with the help of specific property in which we can use arithmetic operations as well
Generally,
It is the general form of any set in which we can construct the complete set with the help of equation in the given in set builder form.
Since we have the elements : 45,55,65,75
So, the set builder form will be { x: x =5(2n+1) ,4≤n≤7,x,n∈ N }
We will read it as it is the value of x which will be find with the help of given equation i.e. x=5(2n+1) where n goes from 4 to 7 only and x and n are natural numbers only.
Answer: 42
Step-by-step explanation:
Here given numbers : 28 and 63
so Mean = √x * y
let x = 28 and y = 63
<em>So mean proportion between them is:</em>
M = √63 * 28
M = √1764
M = 42
- therefore the mean proportion between 28 and 63 is 42
for more example and help visit: <u>https://brainly.in/question/1336259</u>
The ratio equal to 7/8 is 14/16